How can we improve the Microsoft Edge developer experience?

use Surface Book dGPU for WebGL and WebVR

On a Surface Book 1 and Surface Book 2, both running Edge 16 with latest patches, FishGL gets <20fps. Looking at Task Manager, the Edge process is not using the NVidia discrete GPU *at all*. WebVR on the Surface Book 2 was similarly poor in performance. Please use the dGPU when WebGL or WebVR are in-use on a tab. If that means the tab has to be suspended or reloaded when detaching, that's fine by me.